Analysis of Circularly-Polarized CTS Arrays
| Autor: | Maciej Smierzchalski, Mauro Ettorre, Michele Del Mastro, Francesco Foglia Manzillo, Patrick Potier, Philippe Pouliguen, Ronan Sauleau, David Gonzalez-Ovejero |
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| Přispěvatelé: | Institut d'Électronique et des Technologies du numéRique (IETR), Université de Nantes (UN)-Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives - Laboratoire d'Electronique et de Technologie de l'Information (CEA-LETI), Direction de Recherche Technologique (CEA) (DRT (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Direction générale de l'Armement (DGA), Direction Générale de l’Armement, Brittany Region, France, Nantes Université (NU)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), Université de Nantes (UN)-Université de Rennes 1 (UR1) |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Electromagnetic waveguides
Continuous transverse stub array Numerical models 02 engineering and technology 7. Clean energy oversized parallel-plate waveguides [SPI]Engineering Sciences [physics] Optics Apertures 0202 electrical engineering electronic engineering information engineering Admittance Antenna arrays Electrical and Electronic Engineering Reflection coefficient Electrical impedance Circular polarization Physics business.industry Axial ratio Impedance 020206 networking & telecommunications Polarization (waves) Stub (electronics) Transverse plane circular polarization Communications satellite business |
| Zdroj: | IEEE Transactions on Antennas and Propagation IEEE Transactions on Antennas and Propagation, 2020, 68 (6), pp.4571-4582. ⟨10.1109/TAP.2020.2972438⟩ IEEE Transactions on Antennas and Propagation, Institute of Electrical and Electronics Engineers, 2020, 68 (6), pp.4571-4582. ⟨10.1109/TAP.2020.2972438⟩ |
| ISSN: | 0018-926X |
| DOI: | 10.1109/TAP.2020.2972438⟩ |
| Popis: | International audience; This paper presents an efficient analysis method for a novel continuous transverse stub (CTS) antenna. As opposed to state-of-the-art CTS antenna designs, the proposed architecture achieves circular polarization using a single CTS array and without any polarization converter. The structure consists of long radiating slots/stubs fed by over-moded parallel-plate waveguides. More precisely, the transverse electromagnetic (TEM) mode and the first transverse electric (TE1) mode of the feeding waveguides are used to generate a circularly-polarized field. The array is analyzed using a spectral mode-matching method. First, the active reflection coefficient of the infinite array is derived in closed form. A windowing approach is then adopted to compute the radiation patterns of finite-size arrays. Numerical results obtained with this method are in excellent agreement with full-wave simulations, carried out with a commercial software. The performance of this class of CTS antennas has been investigated using the developed model. It is theoretically demonstrated that the proposed array can be designed to attain an axial-ratio (AR) lower than 3 dB over a 52.9% relative bandwidth at broadside. Furthermore, the active input reflection coefficient is lower than -10 dB over a 40.8% relative bandwidth when the array steers its main beam at and#x03B8; 0 = 45and#x2218;. This solution is an attractive candidate for next generation satellite communication terminals. IEEE |
| Databáze: | OpenAIRE |
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